Question
PSLE
Tommy cut out three identical right-angled triangles. He joined them to form the figure CDEF shown. EF = 20 cm and FC = 26 cm. The perimeter of the figure is 80 cm. Find the area of the figure CDEF.
2 m

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PSLE
Tommy cut out three identical right-angled triangles. He joined them to form the figure CDEF shown. EF = 20 cm and FC = 26 cm. The perimeter of the figure is 80 cm. Find the area of the figure CDEF.